A postwar invention, the notion of national security, nonetheless, established itself quickly as the underlying theme for any nation’s external contact. However, a twin questions of what is to be “secured” and from what it is to be “secured” turn the notion practically emptied of manageable contents. As a result, anything could be justified as long as it comes under the promotion of “national security.” Only after mid-1970s, some theorists began questioning the primacy of “national security” in dictating the relations among the nations.